Improvement in thill-couplings



A. '0. TYLER.

Improvement in Thill Coupling.

Patented Feb-13,1872.

r 6 J 0 9 0 A PATENT OFFICE.

ABEL D. TYLER, OF NORTH BBIDGEWATER, MASSACHUSETTS.

IMPROVEMENT lNTHlLL-COUPLINGS.

Specification forming part of Letters Patent No. 123,597, dated February13, 1872.

To all whom it may concern:

Be it known that I, ABEL D. TYLER, of

' North Bridgewater, in the county of Plymouth and State ofMassachusetts, have invented an Improved Carriage-Shackle, or device forconnecting a thill or pole with an axle; and do hereby declare the sameto be fully described in the following specification, and represented inthe accompanying drawing, of which Figure l is a top view of a thill andaxle as connected with my improved shackle. Fig. 2 is a side elevationof the same; Fig. 3, a longitudinal section thereof; Fig. 4, ahorizontal section taken on the line a: 00 of Fig. 2.

v The object of my invention is to provide a simple, strong, andefl'ective mode of connecting a thill or pole with the axle of acarriage,

one which will not only prevent the disagreeable rattling of the partsof the coupling as ordinarily made, but prevent any wearing of the partsfrom weakening the connection of the thill or pole with the axle; and myinvention consists in the improved method of con structing and combiningthe parts of the coupling, as will be hereinafter fully described.

In the said drawing, A is what may be termed a double clip, one part, a,of which embraces the axle B, and is firmly affixed thereto; the otheror front portion, I), receives within it a sectional box, whose parts 00 have grooves d 61 made in their outer vertical faces to receive thetwo legs, 0 e, of the clip I), and thus serve to preserve the parts ofthe box from any lateral displacement. D is a metallic yoke formed withslots, through which the legs of the clip pass, each of the said legshaving a male screw on its lower end to receive a nut, f, by which theclip is firmly connected with the axle. To the lower end of the thill Ea thill-iron, F, is affixed, the same ter urinating in an eye or loop,which is approximately of a triangular shape, the base g of which is ofan oval, globular, or double-conic form, as shown in Figs. 1 and. 4.,and fitting into a corresponding-shaped groove made in the two halves ofthe box; the object of such enlargement being two-fold-viz.: to preventany endwise movement of the iron within its box, andalso to aflordawearing-surface on which all the wear of the iron should come, andwhich, under any reduction thereof, would not in anywise interfere withthe strength andiirmness of the coupling. G is a set-screw which worksthrough the yoke D, and against the lower surface of the interior half 0of the box, the same serving to maintain the parts of the coupling intheir due relation in case of any wear thereof. The two parts orsections 0 c of the box are formed as male and female; the upper or maleportion having an extension, h, which projects into a chamber formed inthe lower or female part, as shown in Figs. 2 and 3; the object of suchconstruction being to prevent an forward or backward movement of the twoparts upon each other.

From the above it will be seen that by my peculiar construction andarrangement of the parts I produce a firm, compact, and reliable shackleor means for connecting a thill or pole with an axle of a carriage-onewhich is little liable of getting out of order, the wearing parts beingso constructed that as they become worn they can not only be maintainedin their due relation, but such wear does not tend to weaken theconnection of the coupling. v

Having described my invention, what I claim is as follows:

The improved carriage-shackle, substantial ly as described, the sameconsisting of the double clip A, the sectional box a c, the yoke D, theset-screw G, and the thill-iron'F, the whole being constructed,combined, and arranged,

and applied to the axle and thill or pole of a carriage, in manner asset forth.

\Vitnesses: ABEL D. TYLER.

F. P. HALE, F. O. HALE.

